Comment 8 for bug 991728

Thanks for your report.

Errors from the log:
2012-04-28 23:56:46,913 ERROR not handled exception in KDE frontend:
Traceback (most recent call last):
  File "/tmp/update-manager-rieTLl/DistUpgradeViewKDE.py", line 220, in pulse
    self.status.setText(_("Fetching file %li of %li at %sB/s") % (current_item, self.total_items, apt_pkg.size_to_str(self.current_cps)))
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 1: ordinal not in range(128)

and then
2012-04-29 00:00:54,202 ERROR not handled exception in KDE frontend:
Traceback (most recent call last):
  File "/tmp/update-manager-rieTLl/precise", line 7, in <module>
    sys.exit(main())
  File "/tmp/update-manager-rieTLl/DistUpgradeMain.py", line 220, in main
    if app.run():
  File "/tmp/update-manager-rieTLl/DistUpgradeController.py", line 1721, in run
    return self.fullUpgrade()
  File "/tmp/update-manager-rieTLl/DistUpgradeController.py", line 1690, in fullUpgrade
    if not self.doDistUpgrade():
  File "/tmp/update-manager-rieTLl/DistUpgradeController.py", line 1065, in doDistUpgrade
    res = self.cache.commit(fprogress,iprogress)
  File "/tmp/update-manager-rieTLl/DistUpgradeCache.py", line 256, in commit
    apt.Cache.commit(self, fprogress, iprogress)
  File "/usr/lib/python2.7/dist-packages/apt/deprecation.py", line 98, in deprecated_function
    return func(*args, **kwds)
  File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 473, in commit
    res = self.install_archives(pm, install_progress)
  File "/usr/lib/python2.7/dist-packages/apt/deprecation.py", line 98, in deprecated_function
    return func(*args, **kwds)
  File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 436, in install_archives
    res = install_progress.run(pm)
  File "/tmp/update-manager-rieTLl/DistUpgradeView.py", line 211, in run
    res = os.WEXITSTATUS(self.wait_child())
  File "/tmp/update-manager-rieTLl/DistUpgradeViewKDE.py", line 415, in wait_child
    self.update_interface()
  File "/tmp/update-manager-rieTLl/DistUpgradeViewKDE.py", line 396, in update_interface
    logging.error("got ValueError from InstallProgress.update_interface. Line was '%s' (%s)" % (self.read, e))
AttributeError: 'KDEInstallProgressAdapter' object has no attribute 'read'